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20031133319 = 194031032373
BaseRepresentation
bin10010101001111100…
…101101011010000111
31220201000010000010122
4102221330231122013
5312010432231234
613111400412155
71306250552411
oct225174553207
956630100118
1020031133319
11854a063a3a
123a7047705b
131b72c88712
14d804ab9b1
157c386a92e
hex4a9f2d687

20031133319 has 4 divisors (see below), whose sum is σ = 20032185096. Its totient is φ = 20030081544.

The previous prime is 20031133301. The next prime is 20031133387. The reversal of 20031133319 is 91333113002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20031133319 is a prime.

It is a super-2 number, since 2×200311333192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031133019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496784 + ... + 535589.

It is an arithmetic number, because the mean of its divisors is an integer number (5008046274).

Almost surely, 220031133319 is an apocalyptic number.

20031133319 is a deficient number, since it is larger than the sum of its proper divisors (1051777).

20031133319 is a wasteful number, since it uses less digits than its factorization.

20031133319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051776.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 20031133319 in words is "twenty billion, thirty-one million, one hundred thirty-three thousand, three hundred nineteen".

Divisors: 1 19403 1032373 20031133319